The early universe appears a bit different than they expected but that was the point of building the JWST: to show what it actually looked like. But new explanations are emerging as a result. One thing that is not in jeopardy however, is still the fact that the universe is expanding, and at a particular rate; even if that rate is not as constant as we once thought either. There are anomalies in that which we knew about even before the JWST.
The problem is that the earlier Hubble theories were based on math and physics which appeared to make sense.
When they do not work in the real world that is not an “anomaly”.
That is a critical breakdown in the theory.
Refusal to face theory failures is exactly why major leaps forward in science require old scientists to die—the geezers never like to admit they made huge errors.